handout_earth_structure_tectonics

handout_earth_structure_tectonics - HANDOUT FOR CHAPTER 3...

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HANDOUT FOR CHAPTER 3 PLATE TECTONICS * As you go down deeper into the interior of the earth, temperature increases. The highest tem- perature is found near the center of the earth. Heat has been escaping toward the outer space. Heat is due to radioactive decay . * Interior structure of the earth could be examined by: Analysis of seismic waves propagating in- side the earth. Analysis of the orbit of satellite orbiting the earth. Analysis of gravitational pull at various locations. * Interior of the earth has a layered structure. Heavier material sank toward the center of the earth. * Earth's interior: inner core (solid), outer core (liquid), mantle (solid and liquid), crust (sol- id). Lithosphere , asthenosphere . * Continental crust (granitic, less dense, thicker and older) and oceanic crust (basalt, denser, thinner and younger). * Isostacy , isostatic equilibrium (thicker continental crust stands high compared to oceanic crust), isostatic crustal rebound (when glaciers melt, land underneath will rise). * Continental drift
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handout_earth_structure_tectonics - HANDOUT FOR CHAPTER 3...

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